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Home >> Chevrolet >> 2001 >> Camaro Base, 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 9 (Analog Instrument Panels) >> Diagnostic Tests >> DTC B0516: Speedometer Signal Circuit Malfunction >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2000 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
  1. Conditions that may cause an intermittent are PCM is unable to process correct vehicle speed data sent from VSS or erratic VSS operation.
  2. Test drive vehicle and check for proper speedometer operation. If IPC cannot display proper vehicle speed information, use scan tool to display PCM VSS data. If PCM is not receiving proper input from VSS, PCM and VSS circuits must be diagnosed first before diagnosing DTC B0516. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
  3. Before diagnosing DTC B0516, always check for proper speedometer operation by using scan tool to display PCM vehicle speed data and check for VSS DTCs.
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